但凡维修人员大致都有这样的经历:在刚刚接触到显像管老化故障时,往往由于缺乏经验,没有弄清图像出现异常现象的实质,和因电路原因引起图像异常现象的区别,仍按以往维修的老思路在电路上找原因,在调整上下功夫,结果走了许多的弯路,根本不见成效。其实因显像管老化而引起电视图像出现的异常现 Whenever the maintenance staff generally have such an experience: just contact with the CRT aging failure, often due to lack of experience, did not find out the essence of the phenomenon of abnormal images, and cause abnormalities due to circuit differences, still according to the previous maintenance The old idea to find the cause in the circuit, make adjustments in the effort, the result took a lot of detours, did not see any results. In fact, due to CRT aging caused by the abnormal appearance of television images